Home / 3,243.78-4,861.35-3,207.06

Finding the Fourth Proportional to 3,243.78, 4,861.35 and 3,207.06

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Solution

The fourth proportional to 3,243.78, 4,861.35 and 3,207.06 is: 4,806.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.78 : 4,861.35 = 3,207.06 : x
  2. Step 2: Convert to fraction form
    3,243.78/4,861.35 = 3,207.06/x
  3. Step 3: Cross multiply
    3,243.78x = 4,861.35 × 3,207.06
  4. Step 4: Simplify right side
    3,243.78x = 15,590,641.13
  5. Step 5: Solve for x
    x = 15,590,641.13/3,243.78
  6. Step 6: Final answer
    x = 4,806.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.